* persons who received the second dose of vaccine more than 12 weeks after the first dose * persons vaccinated against covid-19 with a vaccine other than pfizer comirnaty * women who report being pregnant or breastfeeding (where the immune response may be altered) * immunocompromised persons (immunosuppressive treatment, immunomodulator, hiv positive, splenectomy, long term corticosteroid therapy, autoimmune diseases such as rheumatoid arthritis, lupus, spondyloarthritis, etc.) * people who are not intellectually capable of answering the questionnaire * persons under guardianship, curatorship or any other legal incapacity * persons with documented covid-19 infection (known positive sars-cov-2 serology prior to inclusion, positive pcr or antigen test)

* persons who received the second dose of vaccine more than 12 weeks after the first dose * persons vaccinated against covid-19 with a vaccine other than pfizer comirnaty * women who report being pregnant or breastfeeding (where the immune response may be altered) * immunocompromised persons (immunosuppressive treatment, immunomodulator, hiv positive, splenectomy, long term corticosteroid therapy, autoimmune diseases such as rheumatoid arthritis, lupus, spondyloarthritis, etc.) * people who are not intellectually capable of answering the questionnaire * persons under guardianship, curatorship or any other legal incapacity * persons with documented covid-19 infection (known positive sars-cov-2 serology prior to inclusion, positive pcr or antigen test)

persons who received the second dose of vaccine more than 12 weeks after the first dose persons vaccinated against covid-19 with a vaccine other than pfizer comirnaty women who report being pregnant or breastfeeding (where the immune response may be altered) immunocompromised persons (immunosuppressive treatment, immunomodulator, hiv positive, splenectomy, long term corticosteroid therapy, autoimmune diseases such as rheumatoid arthritis, lupus, spondyloarthritis, etc.) people who are not intellectually capable of answering the questionnaire persons under guardianship, curatorship or any other legal incapacity persons with documented covid-19 infection (known positive sars-cov-2 serology prior to inclusion, positive pcr or antigen test)

persons who received the second dose of vaccine more than 12 weeks after the first dose persons vaccinated against covid-19 with a vaccine other than pfizer comirnaty women who report being pregnant or breastfeeding (where the immune response may be altered) immunocompromised persons (immunosuppressive treatment, immunomodulator, hiv positive, splenectomy, long term corticosteroid therapy, autoimmune diseases such as rheumatoid arthritis, lupus, spondyloarthritis, etc.) people who are not intellectually capable of answering the questionnaire persons under guardianship, curatorship or any other legal incapacity persons with documented covid-19 infection (known positive sars-cov-2 serology prior to inclusion, positive pcr or antigen test)